From Saint-Genis-Terrenoire (Genilac)
Departmental road
Col de la Gachet, 748 m, in Loire. Main climb: 11.5 km at 4.4% average, 506 m of climbing from Saint-Genis-Terrenoire (Genilac).
Figures for the main climb (From Saint-Genis-Terrenoire (Genilac)). The other climbs are further down.
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Saint-Genis-Terrenoire (Genilac) | 11.5 km | 506 m | 14 m | 4.4 % | 9.9 % | 2.1 Easy |
| From Saint-Romain-en-Jarez | 5.1 km | 308 m | — | 6.0 % | 8.8 % | 1.9 Easy |
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Departmental road
Departmental road
2 ascents proposed here — other ways up this col remain possible.
Distances and elevation gains derived from the OpenStreetMap road network and a digital terrain model, measured on the very profile shown here.
Figures computed on 7 September 2026.
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
The hardest climb of Col de la Gachet, from Saint-Genis-Terrenoire (Genilac), is 11.5 km long for 506 m of ascent, i.e. 4.4% average.
The steepest 500 m sits at 9.9%, and the hardest kilometre is the 1th, at 7.8%.
Sleipnir recognises the cols you cross from the GPS trace of your rides: the col ticks itself off the day you ride over it.
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